2016 MAZDA MODEL 3 HATCHBACK check engine light

5–2
Interior Features
Climate Control System
O p e r a t i n g T i p s
 












y Operate the climate control system with
the engine running.
 


y To prevent the battery from being
discharged, do not leave the fan control
dial on for a long period of time with the
ignition switched ON when the engine is
not running.
 


y Clear all obstructions such as leaves,
snow and ice from the hood and the air
inlet in the cowl grille to improve the
system ef¿ ciency.




y Use the climate control system to defog
the windows and dehumidify the air.
 


y The recirculate mode should be used
when driving through tunnels or while in
a traf¿ c jam, or when you would like to
shut off outside air for quick cooling of
the interior.
 


y Use the outside air position for
ventilation or windshield defrosting.
 


y If the vehicle has been parked in direct
sunlight during hot weather, open the
windows to let warm air escape, then
run the climate control system.

(With A/C switch)
 




y Run the air conditioner about 10 minutes
at least once a month to keep internal
parts lubricated.
 


y Have the air conditioner checked before
the weather gets hot. Lack of refrigerant
may make the air conditioner less
ef¿ cient.

 The refrigerant speci¿ cations are
indicated on a label attached to the
inside of the engine compartment. Check
the label before re¿ lling the refrigerant.
If the wrong type of refrigerant is used,
it could result in a serious malfunction
of the air conditioner.
  For details, consult an Authorized
Mazda Dealer.


Label

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7–19
If Trouble Arises
Overheating
O v e r h e a t i n g
If the high engine coolant temperature
warning light illuminates, the vehicle loses
power, or you hear a loud knocking or
pinging noise, the engine is probably too
hot.
WARNING
Switch the ignition to off and make
sure the fan is not running before
attempting to work near the cooling
fan:
Working near the cooling fan when it
is running is dangerous. The fan could
continue running indefi nitely even if
the engine has stopped and the engine
compartment temperature is high. You
could be hit by the fan and seriously
injured.

Do not remove either cooling
system cap when the engine and
radiator are hot:
When the engine and radiator are hot,
scalding coolant and steam may shoot
out under pressure and cause serious
injury.

Open the hood ONLY after steam is no
longer escaping from the engine:
Steam from an overheated engine is
dangerous. The escaping steam could
seriously burn you.

If the high engine coolant temperature
warning light illuminates:


1. Drive safely to the side of the road and
park off the right-of-way.
2. Put a vehicle with an automatic
transaxle in park (P), a manual
transaxle in neutral.
3. Apply the parking brake.
4. Turn off the air conditioner.
5. Check whether coolant or steam is
escaping from the engine compartment.

If steam is coming from the engine
compartment:
Do not go near the front of the vehicle.
Stop the engine.
Wait until the steam dissipates, then
open the hood and start the engine.

If neither coolant nor steam is
escaping:
Open the hood and idle the engine until
it cools.
CAUTION
If the cooling fan does not operate
while the engine is running, the engine
temperature will increase. Stop the
engine and call an Authorized Mazda
Dealer.

6. Make sure the cooling fan is operating,
then turn off the engine after the
temperature has decreased.
7. When cool, check the coolant level.
If it is low, look for coolant leaks from
the radiator and hoses.


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7–25
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
Signal Warning


Electronic Brake Force
Distribution System
Warning If the electronic brake force distribution control unit determines that some components
are operating incorrectly, the control unit may illuminate the brake system warning
light and the ABS warning light simultaneously. The problem is likely to be the
electronic brake force distribution system.
WARNING
Do not drive with both the ABS warning light and brake warning light illuminated.
Have the vehicle towed to an Authorized Mazda Dealer to have the brakes
inspected as soon as possible:
Driving when the brake system warning light and ABS warning light are
illuminated simultaneously is dangerous.
When both lights are illuminated, the rear wheels could lock more quickly in an
emergency stop than under normal circumstances.


Charging System
Warning Light If the warning light illuminates while driving, it indicates a malfunction of the
alternator or of the charging system.
Drive to the side of the road and park off the right-of-way. Consult an Authorized
Mazda Dealer. CAUTION
Do not continue driving when the charging system warning light is illuminated
because the engine could stop unexpectedly.


Engine Oil Warning
Light This warning light indicates low engine oil pressure.
CAUTION
Do not run the engine if the oil pressure is low. Otherwise, it could result in extensive
engine damage.
If the light illuminates or the warning indication is displayed while driving:
1. Drive to the side of the road and park off the right-of-way on level ground.
2. Turn off the engine and wait 5 minutes for the oil to drain back into the oil pan.
3. Inspect the engine oil level 6-30 . If it's low, add the appropriate amount of engine
oil while being careful not to over¿ ll.
CAUTION
Do not run the engine if the oil level is low. Otherwise, it could result in extensive
engine damage.
4. Start the engine and check the warning light.

If the light remains illuminated even though the oil level is normal or after adding oil,
stop the engine immediately and have your vehicle towed to an Authorized Mazda
Dealer.
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7–27
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Signal Warning


ABS Warning Light If the ABS warning light stays on while you're driving, the ABS control unit has detected a
system malfunction. If this occurs, your brakes will function normally as if the vehicle had
no ABS.
Should this happen, consult an Authorized Mazda Dealer as soon as possible. N O T E
y When the engine is jump-started to charge the battery, uneven rpm occurs and the ABS
warning light may illuminate. If this occurs, it is the result of the weak battery and does
not indicate an ABS malfunction.
Recharge the battery.
y The brake assist system does not operate while the ABS warning light is illuminated.


Check Engine Light If this light illuminates while driving, the vehicle may have a problem. It is important to
note the driving conditions when the light illuminated and consult an Authorized Mazda
Dealer.

The check engine light may illuminate in the following cases:
y The fuel tank level being very low or approaching empty.
y The engine's electrical system has a problem.
y The emission control system has a problem.
y The fuel-¿ ller cap is missing or not tightened securely.

If the check engine light remains on, or it À ashes continuously , do not drive at high speeds
and consult an Authorized Mazda Dealer as soon as possible.


Automatic
Transaxle Warning
Light
* The light/indication illuminates when the transaxle has a problem.
CAUTION
If the automatic transaxle warning light illuminates, the transaxle has an electrical
problem. Continuing to drive your Mazda in this condition could cause damage to your
transaxle. Consult an Authorized Mazda Dealer as soon as possible.


Air Bag/Seat
Belt Pretensioner
System Warning
Light A system malfunction is indicated if the warning light constantly À ashes, constantly
illuminates or does not illuminate at all when the ignition is switched ON. If any of these
occur, consult an Authorized Mazda Dealer as soon as possible. The system may not operate
in an accident. WARNING

Never tamper with the air bag/pretensioner systems and always have an Authorized
Mazda Dealer perform all servicing and repairs:

Self-servicing or tampering with the systems is dangerous. An air bag/pretensioner
could accidentally activate or become disabled causing serious injury or death.
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7–28
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Signal Warning


Tire Pressure
Monitoring System
Warning Light
* If the tire pressure monitoring system has a malfunction, the tire pressure warning
light À ashes for about 1 minute when the ignition is switched ON and then continues
illuminating. Have your vehicle checked by an Authorized Mazda Dealer as soon as
possible.
WARNING
If the tire pressure monitoring system warning light illuminates or fl ashes, or the tire
pressure warning beep sound is heard, decrease vehicle speed immediately and avoid
sudden maneuvering and braking:
If the tire pressure monitoring system warning light illuminates or fl ashes, or the tire
pressure warning beep sound is heard, it is dangerous to drive the vehicle at high
speeds, or perform sudden maneuvering or braking. Vehicle drivability could worsen
and result in an accident.
To determine if you have a slow leak or a fl at, pull over to a safe position where you can
check the visual condition of the tire and determine if you have enough air to proceed
to a place where air may be added and the system monitored again by an Authorized
Mazda Dealer or a tire repair station.

Do not ignore the TPMS Warning Light:
Ignoring the TPMS warning light is dangerous, even if you know why it is illuminated.
Have the problem taken care of as soon as possible before it develops into a more
serious situation that could lead to tire failure and a dangerous accident.


(Red)
(Illuminate)
KEY Warning Light If any malfunction occurs in the keyless entry system, it illuminates continuously.
CAUTION
If the key warning indicator light illuminates or the push button start indicator light
(amber) fl ashes, the engine may not start. If the engine cannot be started, try starting it
using the emergency operation for starting the engine, and have the vehicle inspected
at an Authorized Mazda Dealer as soon as possible.
Refer to Emergency Operation for Starting the Engine on page 4-9 .


(Amber)
(Flashes)
Lane Departure
Warning System
(LDWS) Warning
Light
* The warning light À ashes when the system has a malfunction. Have your vehicle inspected
at an Authorized Mazda Dealer.
The LDWS does not operate when the warning light À ashes.

CAUTION
¾ If any of the following cases occurs, the system may have a malfunction. Have the vehicle
inspected at an Authorized Mazda Dealer.

¾ The light fl ashes while the vehicle is being driven.
¾ The light does not illuminate when the ignition is switched ON.
¾ Always use tires for all wheels that are of the specifi ed size, and the same manufacture,
brand, and tread pattern. In addition, do not use tires with signifi cantly diff erent wear
patterns on the same vehicle. If such improper tires are used, the LDWS may not operate
normally.
¾ When an emergency spare tire is used, the system may not operate normally.
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7–29
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Signal Warning


Headlight
Auto-Leveling
Malfunction
Indicator Light
* This indicator light stays on for a few seconds when the ignition is switched ON.
Thereafter, the indicator light will illuminate when the headlight auto-leveling system has a
malfunction.
If the indicator light illuminates, contact an Authorized Mazda Dealer.
N O T E
Vehicles with the adaptive front lighting system (AFS) are not equipped with the headlight
auto-leveling malfunction indicator light. If there is a malfunction with the headlight auto-
leveling function, the AFS OFF indicator light À ashes.


(Amber)
High Beam Control
System (HBC)
Warning Light
*
When illuminated
The warning light illuminates if the area of the windshield in front of the forward sensing
camera (FSC) is fogged or obstructed.
W h e n À ashing
This light À ashes if there is a malfunction in the high beam control system (HBC). Have
your vehicle inspected by an Authorized Mazda Dealer.


(Amber)
(Flashing)
Mazda Radar
Cruise Control
(MRCC) Warning
Light
* The warning light À ashes if there is a malfunction in the system while the Mazda Radar
Cruise Control (MRCC) system is on. Have your vehicle inspected at an Authorized Mazda
Dealer.

Taking Action
Take the appropriate action and verify that the warning light turns off.

Signal Warning Action to be taken


Low Fuel Warning
Light The light turns on when the remaining fuel
is about 9.0 L (2.3 US gal, 1.9 Imp gal). N O T E
The light illumination timing may vary
because fuel inside the fuel tank moves
around according to the driving conditions
and the vehicle posture. Add fuel.


Check Fuel Cap
Warning Light If the check fuel cap warning light
illuminates while driving, the fuel-¿ ller cap
may not be installed properly. Stop the engine and reinstall the fuel-¿ ller
cap.
Refer to Fuel-Filler Cap on page 3-30
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9–9
Speci¿ cations
Speci¿ cations
Air Conditioner
The type of refrigerant used is indicated on a label attached to the inside of the engine
compartment. Check the label before recharging the refrigerant. Refer to Climate Control
System on page 5-2 .
Item Classi¿ cation
Refrigerant Type HFC134a (R-134a)

Light Bulbs
Exterior light
Light bulb Category
Wattage UNECE *1 (SAE)
Headlights Halogen High beam 65 HB3 (9005)
Low beam 55 H11 (H11)
Xenon fusion High/Low beam 35 D4S (D4S)
Daytime running lights With halogen bulb headlights 65 HB3 (9005)
With xenon fusion bulb headlights LED
*2 — (—)
Parking lights (Front side-
marker lights) With halogen bulb headlights 5 WY5W (—)
Front side-marker lights With xenon fusion bulb headlights 5 W5W (—)
Parking lights With xenon fusion bulb headlights LED
*2 — (—)
Front turn signal lights 21 WY21W (7443NA)
Fog lights
* 55 H11 (H11)
Side turn signal lights * L E D *2 — (—)
High-mount brake light LED *2 — (—)
Rear turn signal lights 21 WY21W (7443NA)
Brake lights/Taillights/Rear
side-marker lights LED type LED
*2 — (—)
Bulb type 21/5 W21/5W (7443)
Taillights (Liftgate side/Trunk lid side)
* LED *2 — (—)
Reverse lights 4–Door 18 W16W (921)
5–Door 21 W21W (7440)
License plate lights 5 W5W (—)
*1 UNECE stands for United Nations Economic Commission for Europe.
*2 LED is the abbreviation for Light Emitting Diode.


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